Title :
Model-based ocean acoustic passive localization
Author :
Candy, J.V. ; Sullivan, E.J.
Author_Institution :
Lawrence Livermore Nat. Lab., CA, USA
Abstract :
A model-based approach is developed (theoretically) to solve the passive localization problem. The author investigates the design of a model-based identifier for a shallow water ocean acoustic problem characterized by a normal-mode model. In this problem it is shown how the processor can be structured to estimate the vertical wave numbers directly from measured pressure-field and sound speed measurements thereby eliminating the need for synthetic aperture processing or even a propagation model solution. Finally, the author investigates various special cases of the source localization problem, designing a model-based localizer for each and evaluating the underlying structure with the expectation of gaining more and more insight into the general problem
Keywords :
acoustic applications; acoustic signal processing; geophysical signal processing; military computing; military systems; oceanographic techniques; underwater sound; acoustic method; acoustic passive localization; acoustic signal processing; identifier; measurement technique; military system; model-based approach; model-based localizer; normal-mode model; object location; shallow water ocean acoustic problem; source localization problem; undersea warfare; underwater object detection; underwater sound propagation; vertical wave numbers; Acoustic noise; Acoustic propagation; Noise measurement; Oceans; Predictive models; Sea measurements; Sensor arrays; Underwater acoustics; Velocity measurement; Working environment noise;
Conference_Titel :
OCEANS '94. 'Oceans Engineering for Today's Technology and Tomorrow's Preservation.' Proceedings
Conference_Location :
Brest
Print_ISBN :
0-7803-2056-5
DOI :
10.1109/OCEANS.1994.364115
